Update Week1: 9/7/2016
Hello Wonderful Wind Wizards,
- Be respectful of each other and help each other.
- No playing/talking cell phones and/or devices.
- D39C requires that we have no eating or drinking in the classrooms.
- Be respectful of furniture and equipment in the school.
- Of course, most important one: Have Fun!
- Two parts to competition, a build event – where we will experiment and build efficient wind turbine design based on a CD. And a written part with questions related to alternative energy and wind power in general.
- We watched a video of the event and saw some designs that could inspire us.
- We talked about sources of energy on earth. Two internal from earth (from core heat and rotational energy) and our major source which is external i.e. Sun!
- We watched a video about convection currents and saw how these can cause wind patterns on earth.
- We talked briefly about the history of wind energy and how this was harnessed by us humans.
- 1) Search on youtube or any other resources, to learn about how a Wind Turbine works? (Make sure you have your parents permission)
- 2) When learning about wind turbines you are sure to come across to important terms. Lift and Drag. The challenge for this week is for you to understand these terms and present and explain to friends in our class next week. Try and be creative. Each person gets only upto 90 seconds. We will vote on each presentation and the winner gets a treat!!!
- 3)Last part of work for this week is also. Watch the following video.
- * Explanations on lift and drag 20min.
- * Review some terms we need to understand. Drag, Lift, Torque, Friction, types of energy 20min
- * Experiment to learn about convection 20min.
- * Build our first model on CD’s and test: 30min.
- (we will use cardstock paper to cut out our blades).
Update Week2&3: 9/21/2016
- Net Force
I hope you all had good understanding of these concepts. Challenge 1 for this week, explain to your parents (trust me they will be super happy when you do that). You can use the slides from our event website. Be sure to address lots of questions, like, what each of these terms means, do you remember the units in which we measure each of these?. Can you explain what a vector or scalar is?.
- Remember this week we discussed on what we can experiment with in order to improve our design.
- Make lots of notes and follow.
- Challenge 2 for this week;
- The activities are listed as part of the last slide. for your convenience, copied the text below.
- Investigate and acquire materials you may want to use for designing your blades for rotor.
- Plastic, Wood, Thick cardboard paper, etc.
- Come up with atleeast two designs for rotor blade.
- Build at least one rotor. We will have a class room competition next week.
- Read up on
- Different types of wind mills. Pros and Cons.
- We will have pop quiz on this next week.!
- Use google groups to start discussion and share reading material. I will post some links there.
- We will discuss this in next class.
Update Week4,5,6: 10/12/2016
- Number of blades
- Types of material used for blades.
- Size and length of the blades.
- Height of the towers
- Location of the towers.
- Types of wind turbines.
- Parts and their uses in wind turbine.
- Tip-speed ratio
- Betz limit